gnu-social/lib/activitymover.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* Title of module
*
* PHP version 5
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Cache
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
/**
* Class comment
*
* @category General
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class ActivityMover extends QueueHandler
{
function transport()
{
return 'actmove';
}
function handle($data) : bool
{
list ($act, $sink, $userURI, $remoteURI) = $data;
$user = User::getKV('uri', $userURI);
try {
$remote = Profile::fromUri($remoteURI);
} catch (UnknownUriException $e) {
// Don't retry. It's hard to tell whether it's because of
// lookup failures or because the URI is permanently gone.
// If we knew it was temporary, we'd return false here.
return true;
}
try {
$this->moveActivity($act, $sink, $user, $remote);
} catch (ClientException $cex) {
$this->log(LOG_WARNING,
$cex->getMessage());
// "don't retry me"
return true;
} catch (ServerException $sex) {
$this->log(LOG_WARNING,
$sex->getMessage());
// "retry me" (because we think the server might handle it next time)
return false;
} catch (Exception $ex) {
$this->log(LOG_WARNING,
$ex->getMessage());
// "don't retry me"
return true;
}
}
function moveActivity($act, $sink, $user, $remote)
{
if (empty($user)) {
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// TRANS: Exception thrown if a non-existing user is provided. %s is a user ID.
throw new Exception(sprintf(_('No such user "%s".'),$act->actor->id));
}
switch ($act->verb) {
/* case ActivityVerb::FAVORITE:
$this->log(LOG_INFO,
"Moving favorite of {$act->objects[0]->id} by ".
"{$act->actor->id} to {$remote->nickname}.");
// push it, then delete local
$sink->postActivity($act);
$notice = Notice::getKV('uri', $act->objects[0]->id);
if (!empty($notice)) {
$fave = Fave::pkeyGet(array('user_id' => $user->id,
'notice_id' => $notice->id));
$fave->delete();
}
break;*/
case ActivityVerb::POST:
$this->log(LOG_INFO,
"Moving notice {$act->objects[0]->id} by ".
"{$act->actor->id} to {$remote->nickname}.");
// XXX: send a reshare, not a post
$sink->postActivity($act);
$notice = Notice::getKV('uri', $act->objects[0]->id);
if (!empty($notice)) {
$notice->deleteAs($user->getProfile(), false);
}
break;
case ActivityVerb::JOIN:
$this->log(LOG_INFO,
"Moving group join of {$act->objects[0]->id} by ".
"{$act->actor->id} to {$remote->nickname}.");
$sink->postActivity($act);
$group = User_group::getKV('uri', $act->objects[0]->id);
if (!empty($group)) {
$user->leaveGroup($group);
}
break;
case ActivityVerb::FOLLOW:
if ($act->actor->id === $user->getUri()) {
$this->log(LOG_INFO,
"Moving subscription to {$act->objects[0]->id} by ".
"{$act->actor->id} to {$remote->nickname}.");
$sink->postActivity($act);
try {
$other = Profile::fromUri($act->objects[0]->id);
Subscription::cancel($user->getProfile(), $other);
} catch (UnknownUriException $e) {
// Can't cancel subscription if we don't know who to alert
}
} else {
$otherUser = User::getKV('uri', $act->actor->id);
if (!empty($otherUser)) {
$this->log(LOG_INFO,
"Changing sub to {$act->objects[0]->id}".
"by {$act->actor->id} to {$remote->nickname}.");
$otherProfile = $otherUser->getProfile();
Subscription::ensureStart($otherProfile, $remote);
Subscription::cancel($otherProfile, $user->getProfile());
} else {
$this->log(LOG_NOTICE,
"Not changing sub to {$act->objects[0]->id}".
"by remote {$act->actor->id} ".
"to {$remote->nickname}.");
}
}
break;
}
}
/**
* Log some data
*
* Add a header for our class so we know who did it.
*
* @param int $level Log level, like LOG_ERR or LOG_INFO
* @param string $message Message to log
*
* @return void
*/
protected function log($level, $message)
{
common_log($level, "ActivityMover: " . $message);
}
}